Toxicity and bioactivity of Melia azedarach L. on the two spotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae), and its predacious mite, Euseius scutalis (Athais -Henriot) (Acari: Phytoseiidae) [electronic resource].

Includes reference.

Leaves of the plant Melia azedarach L. was extracted successfully with four different solvents. These solvents were namely petroleum ether, chloroform, ethyl acetate and ethanol. These extracts were tested for their toxicity against eggs and adult females of the two spotted spider mite, Tetranychus urticae Koch. Extracts of leaves prepared from various solvents affected the behaviour, toxicity and fecundity of females under laboratory conditions. Petroleum ether extract was the most potent extract tested against adult females while chloroform extract was the most toxic one against eggs of Turticae. Leaf discs treated with Lcso concentration of various extracts showed a high percentage of repellency in all extracts (99.32 to 82.50%).

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